@blueleader07/typeorm
Version:
Data-Mapper ORM for TypeScript, ES7, ES6, ES5. Supports MySQL, PostgreSQL, MariaDB, SQLite, MS SQL Server, Oracle, MongoDB databases.
89 lines (87 loc) • 3.83 kB
JavaScript
import { QueryRunnerAlreadyReleasedError } from "../../error/QueryRunnerAlreadyReleasedError";
import { QueryFailedError } from "../../error/QueryFailedError";
import { AbstractSqliteQueryRunner } from "../sqlite-abstract/AbstractSqliteQueryRunner";
import { Broadcaster } from "../../subscriber/Broadcaster";
import { QueryResult } from "../../query-runner/QueryResult";
/**
* Runs queries on a single sqlite database connection.
*/
export class ReactNativeQueryRunner extends AbstractSqliteQueryRunner {
// -------------------------------------------------------------------------
// Constructor
// -------------------------------------------------------------------------
constructor(driver) {
super();
this.driver = driver;
this.connection = driver.connection;
this.broadcaster = new Broadcaster(this);
}
/**
* Called before migrations are run.
*/
async beforeMigration() {
await this.query(`PRAGMA foreign_keys = OFF`);
}
/**
* Called after migrations are run.
*/
async afterMigration() {
await this.query(`PRAGMA foreign_keys = ON`);
}
/**
* Executes a given SQL query.
*/
query(query, parameters, useStructuredResult = false) {
if (this.isReleased)
throw new QueryRunnerAlreadyReleasedError();
return new Promise(async (ok, fail) => {
const databaseConnection = await this.connect();
this.driver.connection.logger.logQuery(query, parameters, this);
const queryStartTime = +new Date();
databaseConnection.executeSql(query, parameters, (raw) => {
// log slow queries if maxQueryExecution time is set
const maxQueryExecutionTime = this.driver.options.maxQueryExecutionTime;
const queryEndTime = +new Date();
const queryExecutionTime = queryEndTime - queryStartTime;
if (maxQueryExecutionTime &&
queryExecutionTime > maxQueryExecutionTime)
this.driver.connection.logger.logQuerySlow(queryExecutionTime, query, parameters, this);
const result = new QueryResult();
// return id of inserted row, if query was insert statement.
if (query.substr(0, 11) === "INSERT INTO") {
result.raw = raw.insertId;
}
if (raw === null || raw === void 0 ? void 0 : raw.hasOwnProperty("rowsAffected")) {
result.affected = raw.rowsAffected;
}
if (raw === null || raw === void 0 ? void 0 : raw.hasOwnProperty("rows")) {
let records = [];
for (let i = 0; i < raw.rows.length; i++) {
records.push(raw.rows.item(i));
}
result.raw = records;
result.records = records;
}
if (useStructuredResult) {
ok(result);
}
else {
ok(result.raw);
}
}, (err) => {
this.driver.connection.logger.logQueryError(err, query, parameters, this);
fail(new QueryFailedError(query, parameters, err));
});
});
}
// -------------------------------------------------------------------------
// Protected Methods
// -------------------------------------------------------------------------
/**
* Parametrizes given object of values. Used to create column=value queries.
*/
parametrize(objectLiteral, startIndex = 0) {
return Object.keys(objectLiteral).map((key, index) => `"${key}"` + "=?");
}
}
//# sourceMappingURL=ReactNativeQueryRunner.js.map